发明名称 |
PROCESS FOR PREPARING A POLYAMIDE, A NYLON SALT TO BE USED THEREIN AND A PROCESS FOR MAKING THE SALT |
摘要 |
The present invention relates to a process for preparing a polyamide, a polyamide material obtainable by the said process, a nylon salt to be used therein, and a process for making the nylon salt. The process for preparing the polyamide is a direct solid state polymerization process. The salt used herein is a granulate material, prepared by a process, comprising spraying an aqueous solution comprising a diamine and a dicarboxylic acid dissolved in an aqueous medium, or an aqueous slurry comprising a diammonium dicarboxylate salt dispersed in an aqueous medium directly obtained from such an aqueous solution, onto or in a fluidized bed of diammonium dicarboxylate salt particles, while evaporating the aqueous medium, thereby forming a granulate salt material. |
申请公布号 |
WO2016062579(A8) |
申请公布日期 |
2016.08.25 |
申请号 |
WO2015EP73639 |
申请日期 |
2015.07.29 |
申请人 |
DSM IP ASSETS B.V. |
发明人 |
LAARHOVEN VAN, Bas;STOELWINDER, Christiaan, Johannes, Cornelis;HELMSING, Mark |
分类号 |
C08G69/26;C08G69/28;C08G69/30 |
主分类号 |
C08G69/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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